WO2020206879A1

WO2020206879A1 - Method and device for automatically adapting link width of pcie port, electronic apparatus and storage medium

Info

Publication number: WO2020206879A1
Application number: PCT/CN2019/098499
Authority: WO
Inventors: 邱星萍; 吕佳鹏
Original assignee: 苏州浪潮智能科技有限公司
Priority date: 2019-04-11
Filing date: 2019-07-31
Publication date: 2020-10-15
Also published as: CN110008159A

Abstract

A method and device for automatically adapting the link width of a PCIE port, an electronic apparatus and a computer readable storage medium. The method comprises: after a PCIE port has been initialized, acquiring pre-stored configuration information; acquiring identifier information of an adapter card corresponding to a current expansion card; and determining, from the configuration information, link width information corresponding to the identifier information, and configuring the link width of a host-end PCIE port according to the link width information. In the present invention, identifier information and corresponding link width information are pre-stored, such that after a current host end has been connected to an adapter card corresponding to an expansion card, identifier information of the adapter card can be used to determine corresponding link width information, thereby configuring a corresponding link width for a host-end PCIE port. The invention enables the link width of a PCIE port to be adapted automatically.

Description

PCIE width automatic adaptation method, device, electronic equipment and storage medium

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on April 11, 2019, the application number is 201910290903.0, and the invention title is "PCIE width automatic adaptation method, device, electronic equipment and storage medium", and its entire content Incorporated in this application by reference.

Technical field

The present invention relates to the field of computer technology, in particular to a PCIE width automatic adaptation method and device, an electronic device and a computer-readable storage medium.

Background technique

Based on the design of Intel x86 architecture, the maximum link width of a PCIE port is x16. One x16 can be divided into 2 x8 or 4 x4. These configurations are generally pre-allocated by BIOS. If the configuration is x4, The maximum width of the card link is limited to x4, and there are certain restrictions on the cards connected later.

Therefore, how to solve the above-mentioned problems is the focus of those skilled in the art.

Summary of the invention

The purpose of this application is to provide a PCIE width automatic adaptation method and device, an electronic device, and a computer-readable storage medium, so as to realize the automatic PCIE width adaptation.

To achieve the above objective, the present application provides a PCIE width automatic adaptation method, including:

After PCIE port is initialized, obtain the pre-saved configuration information;

Obtain the identification information of the adapter card corresponding to the current external card;

Determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.

Optionally, the obtaining pre-saved configuration information includes:

The configuration information pre-saved in the BMC is obtained through the I2C interface.

Optionally, the configuration information is the current identification information of the riser card and corresponding width information recorded by the BMC to the buffer space after the riser card is connected to the BMC through a GPIO.

Optionally, the configuration information is information generated and saved according to the editing instruction after the BMC receives an editing instruction through a preset input interface.

To achieve the above objective, this application provides a PCIE width automatic adaptation device, including:

Configuration obtaining module, used to obtain pre-saved configuration information after PCIE port is initialized;

The identification acquisition module is used to acquire the identification information of the adapter card corresponding to the current external card;

The width determining module is used to determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.

Optionally, the configuration obtaining module includes:

The information obtaining unit is configured to obtain the configuration information pre-saved in the BMC through the I2C interface.

Optionally, the configuration information is the current identification information and corresponding width information of the riser card recorded by the BMC to the buffer space after the riser card is connected to the BMC through a GPIO.

In order to achieve the above objective, this application provides an electronic device, including:

Memory, used to store computer programs;

The processor is configured to implement the PCIE width automatic adaptation method described in any one of the foregoing disclosures when executing the computer program.

In order to achieve the above objective, the present application provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program described in any of the foregoing disclosures PCIE width automatic adaptation method.

It can be seen from the above solution that the PCIE width automatic adaptation method provided by this application includes: obtaining the pre-saved configuration information after the PCIE port is initialized; obtaining the identification information of the adapter card corresponding to the current external card; determining the Configure the width information corresponding to the identification information in the information, and configure the width of the PCIE at the host side according to the width information. This application saves the identification information and the corresponding width information in advance. After the current host is connected to the riser card corresponding to the external card, the identification information of the riser card is used to determine the corresponding width information, thereby configuring the corresponding width for the host-side PCIE , Realize the automatic adaptation of PCIE width. This application also discloses a PCIE width automatic adaptation device, an electronic device and a computer-readable storage medium, which can also achieve the above technical effects.

It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the application.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is a flowchart of a PCIE width automatic adaptation method disclosed in an embodiment of the application;

2 is a flowchart of another PCIE width automatic adaptation method disclosed in an embodiment of the application;

FIG. 3 is a structural diagram of a PCIE width automatic adaptation device disclosed in an embodiment of the application;

4 is a structural diagram of an electronic device disclosed in an embodiment of the application;

FIG. 5 is a structural diagram of another electronic device disclosed in an embodiment of the application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

In the prior art, based on the Intel x86 architecture design, the maximum link width of a PCIE port is x16. Among them, one x16 can be divided into 2 x8 or 4 x4. These configurations are generally pre-allocated by the BIOS. If the configuration is x4, the maximum width of the card link is limited to x4, and there are certain restrictions on the cards connected later.

Therefore, an embodiment of the present application discloses a PCIE width automatic adaptation method. Referring to FIG. 1, a flowchart of a PCIE width automatic adaptation method disclosed in an embodiment of the present application, as shown in FIG. 1, includes:

S101: After the PCIE port is initialized, obtain the pre-saved configuration information;

In this embodiment, the BIOS is configured as 4 x4 by default, and after the PCIE port is initialized, the pre-saved configuration information for configuring the PCIE width of the host side is obtained.

S102: Obtain identification information of the adapter card corresponding to the current external card;

Further, the adapter card corresponding to the current external card is acquired, and the identification information of the adapter card is determined.

S103: Determine the width information corresponding to the identification information in the configuration information, and configure the width of the PCIE on the host side according to the width information.

In this step, the width information corresponding to the identification information is obtained from the configuration information, so that the width information is used to implement the configuration of the PCIE width on the host side.

It is understandable that the x16 PCIE link is configured as 4 x4 by default when routing. After connecting to the external card through the preset riser card, because the identification information of the riser card is different, by distinguishing the width of the riser card , Determine whether to combine two x4s into one x8, or four x4s into one x16 to configure the PCIE width of the host side. After configuration, the host side can be connected with the riser card of the corresponding width.

It can be seen from the above solution that the PCIE width automatic adaptation method provided by this application includes: obtaining the pre-saved configuration information after the PCIE port is initialized; obtaining the identification information of the adapter card corresponding to the current external card; determining the Configure the width information corresponding to the identification information in the information, and configure the width of the PCIE at the host side according to the width information. This application saves identification information and corresponding width information in advance, after the current host is connected to the riser card corresponding to the external card, the identification information of the riser card is used to determine the corresponding width information, thereby configuring the corresponding width for the host-side PCIE , Realize the automatic adaptation of PCIE width.

The embodiment of the application discloses a PCIE width automatic adaptation method. Compared with the previous embodiment, this embodiment further explains the technical solution. specific:

Referring to FIG. 2, a flowchart of another PCIE width automatic adaptation method provided by an embodiment of the present application, as shown in FIG. 2, includes:

S201: After the PCIE port is initialized, obtain the pre-saved configuration information in the BMC through the I2C interface;

In this step, after the BIOS is started, the BIOS is used to obtain the configuration information in the BMC through the unified I2C interface after the PCIE port is initialized, so as to initialize according to the configuration information.

It can be understood that the configuration information is information pre-saved in the BMC for configuring the PCIE width of the host. Specifically, the configuration information may be that after the riser card is connected to the GPIO of the BMC, the BMC records the current riser card information in the buffer space, and the current riser card information includes identification information and corresponding width information.

In addition, the configuration information may also be information that the BMC generates corresponding configuration information according to the editing instructions after the user inputs the editing instructions for the configuration information through the preset input interface, and saves the information in the BMC memory space.

S202: Obtain identification information of the adapter card corresponding to the current external card;

S203: Determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.

In specific implementation, the width to be configured can be determined according to the identification information of the current riser card. For example, if the identification information of the current adapter card is identified as 00, 00, 00, 00, keep the default setting, which is 4 x4; if the identification information of the current adapter card is identified as 11, 00, 00, the The PCIE width of the host side is configured as x8, x4, x4; if the identification information of the current riser card is identified as 00, 00, 11, the width of the host side PCIE is configured as x4, x4, x8; if the current adapter is identified If the identification information of the interface card is 11, 11, the width of the host side PCIE is configured as x8, x8; if the identification information of the current riser card is identified as 33, the width of the host side PCIE is configured as x16.

The following describes a PCIE width automatic adaptation device provided by an embodiment of the present application. The PCIE width automatic adaptation device described below and the PCIE width automatic adaptation method described above may refer to each other.

Referring to FIG. 3, a structural diagram of a PCIE width automatic adaptation device provided by an embodiment of the present application, as shown in FIG. 3, includes:

The configuration obtaining module 100 is used to obtain pre-saved configuration information after the PCIE port is initialized;

The identification acquisition module 200 is used to acquire identification information of the adapter card corresponding to the current external card;

The width determining module 300 is configured to determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.

Further, in the PCIE width automatic adaptation device provided in this embodiment, the configuration acquisition module may specifically include:

Further, in the PCIE width automatic adaptation device provided in this embodiment, the configuration information is that after the riser card is connected to the BMC via GPIO, the current transfer recorded by the BMC to the buffer space is The identification information of the receiving card and the corresponding width information.

Further, in the PCIE width automatic adaptation device provided in this embodiment, the configuration information is information generated and saved according to the editing instruction after the BMC receives an editing instruction through a preset input interface.

This application also provides an electronic device. Referring to FIG. 4, a structural diagram of an electronic device provided by an embodiment of the application, as shown in FIG. 4, includes:

The memory 11 is used to store computer programs;

The processor 12 is configured to implement the steps of any PCIE width automatic adaptation method disclosed above when executing the computer program.

Specifically, the memory 11 includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer-readable instructions, and the internal memory provides an environment for running the operating system and the computer-readable instructions in the non-volatile storage medium. In some embodiments, the processor 12 may be a central processing unit (CPU), controller, microcontroller, microprocessor or other data processing chip, which provides computing and control capabilities for electronic devices, and executes the When the computer program is stored in the memory 11, the following steps can be implemented:

After the PCIE port is initialized, obtain the pre-saved configuration information; obtain the identification information of the adapter card corresponding to the current external card; determine the width information corresponding to the identification information in the configuration information, and configure according to the width information The width of the PCIE on the host side.

Optionally, when the processor 12 executes the computer subprogram stored in the memory 11, the following steps may be implemented:

Obtain the pre-saved configuration information in the BMC through the I2C interface

Based on the foregoing embodiment, as a preferred implementation manner, referring to FIG. 5, the electronic device further includes:

The input interface 13 is connected to the processor 12 and is used to obtain externally imported computer programs, parameters, and instructions, and store them in the memory 11 under the control of the processor 12. The input interface 13 can be connected to an input device to receive parameters or instructions manually input by the user. The input device may be a touch layer covered on the display screen, a button, a trackball, or a touch pad provided on the terminal housing, or a keyboard, a touch pad, or a mouse.

The display unit 14 is connected to the processor 12 and is used for displaying data processed by the processor 12 and for displaying a visualized user interface. The display unit 14 may be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode, organic light-emitting diode) touch device, etc.

The network port 15 is connected to the processor 12 and is used to communicate with external terminal devices. The communication technology used in the communication connection can be wired communication technology or wireless communication technology, such as mobile high-definition link technology (MHL), universal serial bus (USB), high-definition multimedia interface (HDMI), wireless fidelity technology (WiFi), Bluetooth communication technology, low-power Bluetooth communication technology, communication technology based on IEEE802.11s, etc.

FIG. 5 only shows the electronic device with components 11-15. Those skilled in the art can understand that the structure shown in FIG. 5 does not constitute a limitation on the electronic device, and may include fewer or more components than shown. Components, or combination of certain components, or different component arrangements.

This application also provides a computer-readable storage medium, which may include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic Various media that can store program codes, such as discs or CDs. The storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

Optionally, when the computer subprogram stored in the computer-readable storage medium is executed by the processor, the following steps may be specifically implemented:

The various embodiments in the specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant information can be referred to the description of the method part. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or sequence between operations. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes Other elements of, or also include elements inherent to this process, method, article or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, article, or equipment including the element.

Claims

A PCIE width automatic adaptation method is characterized in that it includes:

After PCIE port is initialized, obtain the pre-saved configuration information;

Obtain the identification information of the adapter card corresponding to the current external card;

Determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.
The PCIE width automatic adaptation method according to claim 1, wherein said acquiring pre-saved configuration information comprises:

The configuration information pre-saved in the BMC is obtained through the I2C interface.
The PCIE width automatic adaptation method according to claim 2, wherein the configuration information is the current conversion recorded by the BMC to the buffer space after the riser card is connected to the BMC through GPIO The identification information of the receiving card and the corresponding width information.
The PCIE width automatic adaptation method according to claim 2, wherein the configuration information is information generated and saved according to the editing instruction after the BMC receives an editing instruction through a preset input interface.
A PCIE width automatic adaptation device is characterized in that it comprises:

Configuration obtaining module, used to obtain pre-saved configuration information after PCIE port is initialized;

The identification acquisition module is used to acquire the identification information of the adapter card corresponding to the current external card;

The width determining module is used to determine the width information corresponding to the identification information in the configuration information, and configure the width of the host-side PCIE according to the width information.
The PCIE width automatic adaptation device according to claim 5, wherein the configuration acquisition module comprises:

The information obtaining unit is configured to obtain the configuration information pre-saved in the BMC through the I2C interface.
The PCIE width automatic adaptation device according to claim 6, wherein the configuration information is the current transfer recorded by the BMC to the buffer space after the riser card is connected to the BMC via GPIO The identification information of the receiving card and the corresponding width information.
The PCIE width automatic adaptation device according to claim 6, wherein the configuration information is information generated and saved according to the editing instruction after the BMC receives an editing instruction through a preset input interface.
An electronic device, characterized in that it comprises:

Memory, used to store computer programs;

The processor is configured to implement the PCIE width automatic adaptation method according to any one of claims 1 to 4 when executing the computer program.
A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the PCIE width automatic Adaptation method.